Negative prices/tolls in (min,+) matrix multiplication (used for shortest path/toll calculations) produce -oo results when there is a directed loop with negative sum. There are cases in accounting where a debt is really an asset -- e.g., if the debt is long-term debt at less than market interest rates. At 05:29 PM 12/26/2003, Steve Gray wrote:
The proposed Reagan dime should have negative value (-$.10), just like his presidency. But this would cause massive confusion. If you give someone an RD, you might immediately owe them $.10. Therefore you have to keep your RD's carefully guarded, to avoid theft, which would cause you debt. But you want to get rid of all your RD's because they represent a debt. If you owe the IRS back taxes, they could send you a pile of RD's, but you could throw them away and deny getting them. What are the implications of having negative coins? I'm confused.